Use plain buffer pointer in request_firmware_into_buf_via_script() instead of a pointer to pointer. The later is not necessary as the request_firmware_into_buf_via_script() does not modify the buffer pointer. Update the mediatek driver to match. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Weijie Gao <weijie.gao@mediatek.com>